Add commands in Fastboot for Android

Add commands in Fastboot for Android
Fastboot is the default debug method for android. Its advantage is that it is used before linux kernel
.
Default commands supported by fastboot:

usage: fastboot [  ] commands:update 
  
    reflash device fromupdate.zipflashall flash boot+ recovery + systemflash 
   
     [ 
    
      ] write a file to a flashpartitionerase 
     
       erase a flashpartitionformat 
      
        format a flashpartitiongetvar 
       
         display abootloader variableboot 
        
          [ 
         
           ] download and boot kernelflash:raw boot 
          
            [ 
           
             ] create bootimage and flash itdevices list allconnected devicescontinue continuewith autobootreboot rebootdevice normallyreboot-bootloader reboot deviceinto bootloaderhelp show thishelp messageoptions:-w erase userdata and cache (andformat if supported by partition type)-u do not first erase partitionbefore formatting-s 
            
              specify device serial number or path todevice port-l with "devices", lists devicepaths-p 
             
               specify product name-c 
              
                override kernel commandline-i 
               
                 specify a custom USB vendor id-b 
                
                  specify a custom kernel baseaddress-n 
                 
                   specify the nand page size.default: 2048-S 
                  
                   [K|M|G] automatically sparse filesgreater than size. 0 to disable
                  
                 
                
               
              
             
            
           
          
         
        
       
      
     
    
   
  

Fastboot provides extended command symbols

fastboot oem command args

The following uses fastboot oem hello test to describe how to scale
(1) In bootable/bootloader/lk/app/mt_boot/fastboot. c
Add a new register to the fastboot_init function.

// The first parameter is the command name // The second parameter is the command execution function // The third parameter is whether the fastboot_register ("oem hello", __oem_hello, FALSE );

(2) Implement the cmd_oem_hello Function
Void pai_oem_hello (const char * arg, void * data, unsigned size ){

// Note that args starts with the end of command, that is, "args" if (! Strncmp (arg, "OK", strlen ("OK") {fastboot_okey ("OK") ;}else {fastboot_fail ("Not OK ");}}

(3). Interaction with PC
You can use the three defined functions to interact with the PC.

fastboot_okey(const char* result);fastboot_fail(const char* reason);fastboot_info(const char* reason); 

Note that the length of the Three printed strings cannot exceed 64-1-4 = 59 characters.

Reprinted please indicate the source: Zhou mu Shui CSDN blog http://blog.csdn.net/zhoumushui

My GitHub: Zhou mu Shui's GitHub https://github.com/zhoumushui